OPTIMUM Maschinen 3020333, Руководство по эксплуатации

Страница: 88 / 98

Malfunctions
Version 1.1.3 - 2020-07-21 88 Translation of the original instructions
B34H | B34HV
GB
B34H_B
34HV_
GB_
7
.f
m
9 Malfunctions
Malfunction
Cause/
possible effects
Solution
FI protective
switch on machines with
frequency converter triggers. • an unusual
FI protective switch is being used •

Power supply on page 32
Motor is getting hot • Wrong electrical connection of 400
V machines
Noise during work. • Spindle is too little lubricated
• Tool is blunt or wrongly clamped
• Lubricate spindle (only possible
when disassembled)
• Use new tool and check tension
(fixed setting of the bit, drill chuck
and taper mandril.
Drill "burns" • Drill speed too high /feed too high
• Chips do not come out of the drill
hole
• Drill blunt
• No or too little cooling
• Select another speed
• Extract drill more often during work
• Sharpen or
use new drill
• Use cooling agent
Drill tip is running off centre, the
drilled hole is non-round • Hard points on the workpiece
• Length of the cutting spirals/or
angles on the tool are unequal.
• Drill deformed
• Use new drill
Drill is defective • No base / support used. • Use support and clamp it with the
workpiece
Drill is running non-round or
shaking • Drill deformed
• Worn out spindle bearings
• Drill is not correctly clamped.
• Drill chuck defective
• Use new drill
• Have the spindle bearings replaced
• Correctly clamp drill
• Replace the drill chuck
It is not possible to insert the drill
chuck or the taper mandrel • Dirt, grease or oil on the taper
inside of the drill chuck or on the
taper surface of the drill spindle • Clean surfaces well
• Keep surfaces free of grease
Motor does not start • Motor is wrongly connected
• Defective fuse
• Have it checked by authorised per-
sonnel
Motor is overheating and there is
no power • Motor overloaded
• Too low mains voltage
• Motor is wrongly connected
• Reduce feed rate
Disconnect immediately and have it
checked by authorized personnel
• Have it checked by authorised per-
sonnel
Precision of the work deficient • Irregularly heavy or tensed
workpiece
• Inexact horizontal position of the
part holder
• Balance the piece statically and
secure without straining
• Adjust part-holder
Drilling spindle sleeve does not
return to its initial position • Spindle return spring does not work
• Locking bolt inserted
• Check spindle return spring, replace
it, if necessary
• Pull out locking pin
The drilling spindle cannot be
moved downwards. • Locking bolt inserted
• Drill depth adjustment no released
• Pull out locking pin
• Release drill depth adjustment